// 数组 --- array string date regexp
let arr1: number[]
let arr2: Array<boolean>

// 字面量赋值
{
  let arr1: number[] = new Array()
  let arr2: number[] = new Array(1,2,3,4)
  let arr3: Array<string> = new Array('AA','BB')
}

// 构造函数赋值法
{
  
}


// 元祖
let x: [string, number]
x = ['hello', 10]

export {}